Welding-burner.



J. B; BURDETT.

WELDING BURNER.

APPLICATIOK TILED DEC. 24, 1910, H Patented Aug. 29, 1911.

a .Vwzzf// m m v 7 w UNITED sing;

PATENT OFFICE.

GOMPANY'. OF CHICAGO. ILLINOIS, A CORQPORATI ON OF DELAWARE.

WELDING-enamels.

Specification of Letters Patent.

Patented Aug, 29

To all whom it may concern:

Be it known that I, JOHN B. Brant-arr. a. citizen of the United States, residingat ()hi eago, eounty ofCook and' State of.-'Ill in0i.

Other ohjeets of the invention willfz tppear more fully hereinafter.

'eonstruet'ion, combination, location, and relative arrangen'ientof parts all as will "i'n'ore -full '\t hereinafter;appear, asshown inthe :miyorripanying drawing, and 'nally pointed out'in the appended claim Referring to the aeenrnpartying dra\\'ing,-- and to the several views and reference signs "tearing 1th(rerun-Figure. 1 is a broken Qt'iew in central longitudinal section of the .lairner embodying the principles of my in.

vention. Fig. 2 is a View in transverse seetion-on tlite line Z -2 Fig. 1. looking in the direction of'the arrows. Fig. 3 is a view similar to Fig. 1; showing a Itl ifl lllfill son'- struetion etnhraeed within the scope of my invention.

In the drawing 5 designates a el'iamhered torch head having passages 6, 7, formed. therein and respectively eornniunioating with a source of ora'rrpressed oxygen supply and a sourrzeof acetylene gas supply through the pipes or otl' er eouneetions- 8, H, the oxygen being supplied under higher pressure than the acetylene gas. 'lhe'high pressure gas supply )assage t3 delivers into the eharnher of the lit-ad ttt'lltlttll of the time .of said eln'unhor.v The el'ianiher of the head is interiorly threaded to receive the exterior-Ir threaded shank 10 of the tip ll, whereby said tip retnoval'jlv st-oured in the head rhamher. The tip ll istprovided with a'eentrally arranged longitudinally extending channel 12. ot" uniform. area throughout; its

length. and whioh \'lll designate the mi) channel. The shank 10 of the tip is Application filed December 24, 1910. Serial No. 599,190 I have lnatl jt certain new and useful Invert; tion in Weldlng-lhtrners, of Which the folto tort-hes or burn-J The intention consists substantially i'n-the' eounterbored, the counterbore beluga-iteriorl v threaded to receive an exterin-rly threaded plug 13. Longitudinallytalulyeent tiall through this plug is for nerlnaelaot e l4 terminating as at M in a; nozzle 0 .re- 9 dueed area, said here anrl nozzle: being in line with the mixing 'ehamher chanHelQlQ and with high pressureggas stu iply a ifi tge G, the nozzle being presented tmt'a 'dantlin proqgi'mity to the innereendof =tl'ie=.mixi-ng 35 eha'mtel 12. In its end surface presentcd itm ward the base surface 1Gofthe:lleathhlzaani her. fivhieh surrounds the xle-liverydendro f the high pressure gas supplr passagelti'ttlie plug lit is formed with acireula ha'nnelvor l'ft'tlSS 17 arranger] in cornnrun: tiezntwith the low pressure gas supply pas agew'tgelon gitudinallt' through a series of passagt tzular re. l-T, into. the rh'ani'iliier l (ullllt tfllmltj in the shank of theti.

In are the eodof .the .plug 14L avl nounted in the eohnterhore.oii the is pressed firmly against. the flat-wall, surface of the chamber in the head whteh rounds theopening into said eliainlu.-r so sage t't, so as to seal the enteri'n sure gas from; mixture with the-low p gas until the high pressure ga is'gp n ated through-ithe nozzle "l -he. low ,pr gas. is drawn through-the passage. 8 ;anrl is earned into theel'iamlier l9, and channel 19, by the suction or injector action of the .h'igh pressure. gas delivered through the nozzle 15.

The structureshown in Fig. 3 (litters from that showli in Fig. 1 only in respeet to minor rlet-ails otulesign. shapearnl etmtourof some oi the details of the devitw, including the head 5 passages (3. 7, eonneetion t), shank I l tip ll, channel 12. plug 13,'hore 14',

awn. 15f. surfaee 1 3, reeess 17', passages 18. and ehamher 1!), the principal difi'erenee being the provision of a hearing shoulder 20 formed in the chamber 19' and 100 against whirh a cooperating bearing surface on the plug 13' hears. Another difference is in the elongation of the nozzle portion and the ronieal contour of the ehamher 19' toward the channel J2 15 'In other re-' speets the two structures are substantially thesan e and their operation is the same.

A welding or euttingburner eonstrl'leted as above described is exceedinglysimple in its opt-.ratio'n and. heing capable of ready re- 10 r'noval from and replacement in the torch head, it will be seen that various tips may be used with the same torch head, thereby enabling a tip having the desired relation of relative area of bore 14: 14 and mixing channel 12 12' to be varied according to the class of work to be done. It will also be seen that a tip having the proper relation of these areas to suit the desired Work is provided Without requiring the laborer. to exercise judgment or skill in the 'select'ipn and assemblage of parts comprising the tip.

The torch construction embodying my invention is equally well adapted for welding and" for cutting purposes. The controlling difi'erence in theme of the device for the.

one or the other of these purposes is the (Ii-f ference in oxygensu'pply, or the pressure under which it may be supplied. By merely varying therelative supply or pressure of p the oxygen the device may be used for the one or the other purpose.

Having now set forth the objects and nature of my invention, and constructions embodying the principles thereof, What I claim as new and useful, and of my own vention, and desire to secure by Letters Patk ent, is,- n i "1. A burner including a chambered torch head having high and low pressure gas sup ply passages; the high pressure passage delivering into the chamber of the head through the base thereof, said base presenting a flat bearing surface surrounding said deliveryopening, a tip having. one en'd removably secured in the chamber of the head, and counterbored 1n the end surface thereof,

ing a mixing channel, and a plug mounted in the counterbored chamber of the tip and presenting a flat bearing surface to bear againstlthe bearing uall surface of the chamber of the head, said plug having a longitudinal bore arranged in line with the high-pressure gassupply passage and the mixing channel, said plug aiso having longitudinal passages to openconununication between the low pressure gas'supply passage and'the bore of the tip. i

2. A-burner including a chambered head and high andlow pressure-gas supply passages, the high pressure gas supply passage delivering into the chamber of the head centrally through the base thereof, a counterbored tip having its end secured in the chamber of the headand provided with a central longitudinal channel forminga inixing channel, and a plug inserted in the inner end of the tip and bearing against the wall. surface of the base of the head chamber said plughaving a central longitudinal bore arranged. in line with the high pressure gas supply passage and with the mixing hanncl. an annular channel or groove in its end surface arranged to "communicate with the low pressiuye gas supply passuge and havinglongituc 'nal passages"delivering from said annular channel to the counterborcfof the tip.

Intestiniony .wh'ereof'l have hereunto set my hand in the presence of the subscribing witnesses, on. this 16th day of December A.D.,19 10.

v JOHN B. BUR-DETT;

Witnesses: t

HUGH F. ADAMS,

said tip having a longitudinal channel form- I'IAROLD ROUN mm. 

